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I am in the process of replacing my valve cover gasket and the hose on the rear of the plenum that feeds to the firewall became damaged when removing it. It became super hard from old age, probably cracked a little.
Anybody ever replace one? The hose has a grommet at the firewall and it appears to be an OEM part. When looking there appears to have multiple parts with similar pieces.
Basically, the hoses on the website are confusing as the images look the same but drawing looks different for the part.
If the hose goes through the firewall, how does it route to brake booster?
Last edited by tinker; Apr 25, 2025 at 07:59 AM.
Reason: Add pic
For a 2013, the brake booster hose (from plenum through firewall (cat. 47474+A in your attached pic)) is p/n: 47474-JK62E which supersedes JK62A (shown):
It appears this hose passes thorough the firewall grommet (cat. 47499 in your attached diagram) when it connects to another hose that eventually feeds the vacuum booster.
With Nissan's history of superseding parts and numbers, it is imperative that you search using your cars VIN and follow the diagrams. Do not rely on internet pics as a lot of those are generic images that "might be the right ones." I just did a casual search for a 2013 Coupe and sedan and the part numbers are the same. And, just for comparison, the hose costs between $15 and $25 overseas whereas it runs about $60 here in the US.
For a 2013, the brake booster hose (from plenum through firewall (cat. 47474+A in your attached pic)) is p/n: 47474-JK62E which supersedes JK62A (shown):
It appears this hose passes thorough the firewall grommet (cat. 47499 in your attached diagram) when it connects to another hose that eventually feeds the vacuum booster.
With Nissan's history of superseding parts and numbers, it is imperative that you search using your cars VIN and follow the diagrams. Do not rely on internet pics as a lot of those are generic images that "might be the right ones." I just did a casual search for a 2013 Coupe and sedan and the part numbers are the same. And, just for comparison, the hose costs between $15 and $25 overseas whereas it runs about $60 here in the US.
Have you ordered any parts from overseas? I have only did this on Ebay but any website suggestions?
I have used amayama.com and partsouq.com and have had zero issues. In fact, I just received my order for front & rear sway bar end links and saved over $120. Please note that Amayama has a tendency to "overestimate" shipping costs but promptly refunds any overpayment once the order is shipped.
Last edited by ILM-NC G37S; Apr 27, 2025 at 10:33 AM.
I have used amayama.com and partsouq.com and have had zero issues. In fact, I just received my order for front & rear sway bar end links and saved over $120. Please note that Amayama has a tendency to "overestimate" shipping costs but promptly refunds any overpayment once the order is shipped.
partsouq.com for some reason doesn't list the G37 under the USA parts list.
However, this is no guarantee the hose is available. Given the age of these cars and what with Nissan's financial woes and this cluck's tariff crap notwithstanding parts are getting rare.
In the end you might be easier off going to the parts store and buy a foot or so of vacuum hose and go from there.
